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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "stickynotespasteprotocol.h"
#include "cpastertr.h"
#include <coreplugin/icore.h>
#include <utils/qtcassert.h>
#include <QDebug>
#include <QByteArray>
#include <QStringList>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QRegularExpression>
#include <QNetworkReply>
#include <algorithm>
enum { debug = 0 };
namespace CodePaster {
static QByteArray expiryParameter(int daysRequested)
{
// Obtained by 'pastebin.kde.org/api/json/parameter/expire' on 26.03.2014
static const int expiryTimesSec[] = {1800, 21600, 86400, 604800, 2592000, 31536000};
const int *end = expiryTimesSec + sizeof(expiryTimesSec) / sizeof(expiryTimesSec[0]);
// Find the first element >= requested span, search up to n - 1 such that 'end' defaults to last value.
const int *match = std::lower_bound(expiryTimesSec, end - 1, 24 * 60 * 60 * daysRequested);
return QByteArray("expire=") + QByteArray::number(*match);
}
void StickyNotesPasteProtocol::setHostUrl(const QString &hostUrl)
{
m_hostUrl = hostUrl;
if (!m_hostUrl.endsWith(QLatin1Char('/')))
m_hostUrl.append(QLatin1Char('/'));
}
unsigned StickyNotesPasteProtocol::capabilities() const
{
return ListCapability | PostDescriptionCapability;
}
bool StickyNotesPasteProtocol::checkConfiguration(QString *errorMessage)
{
if (m_hostChecked) // Check the host once.
return true;
const bool ok = httpStatus(m_hostUrl, errorMessage, true);
if (ok)
m_hostChecked = true;
return ok;
}
// Query 'http://pastebin.kde.org/api/json/parameter/language' to obtain the valid values.
static inline QByteArray pasteLanguage(Protocol::ContentType ct)
{
switch (ct) {
case Protocol::Text:
break;
case Protocol::C:
return "language=c";
case Protocol::Cpp:
return "language=cpp-qt";
case Protocol::JavaScript:
return "language=javascript";
case Protocol::Diff:
return "language=diff";
case Protocol::Xml:
return "language=xml";
}
return QByteArray("language=text");
}
void StickyNotesPasteProtocol::paste(
const QString &text,
ContentType ct,
int expiryDays,
const QString &username,
const QString &comment,
const QString &description
)
{
enum { maxDescriptionLength = 30 }; // Length of description is limited.
Q_UNUSED(username)
Q_UNUSED(comment)
QTC_ASSERT(!m_pasteReply, return);
// Format body
QByteArray pasteData = "&data=";
pasteData += QUrl::toPercentEncoding(fixNewLines(text));
pasteData += '&';
pasteData += pasteLanguage(ct);
pasteData += '&';
pasteData += expiryParameter(expiryDays);
if (!description.isEmpty()) {
pasteData += "&title=";
pasteData += QUrl::toPercentEncoding(description.left(maxDescriptionLength));
}
m_pasteReply = httpPost(m_hostUrl + QLatin1String("api/json/create"), pasteData, true);
connect(m_pasteReply, &QNetworkReply::finished, this, &StickyNotesPasteProtocol::pasteFinished);
if (debug)
qDebug() << "paste: sending " << m_pasteReply << pasteData;
}
// Parse for an element and return its contents
static QString parseElement(QIODevice *device, const QString &elementName)
{
const QJsonDocument doc = QJsonDocument::fromJson(device->readAll());
if (doc.isEmpty() || !doc.isObject())
return QString();
QJsonObject obj= doc.object();
const QString resultKey = QLatin1String("result");
if (obj.contains(resultKey)) {
QJsonValue value = obj.value(resultKey);
if (value.isObject()) {
obj = value.toObject();
if (obj.contains(elementName)) {
value = obj.value(elementName);
return value.toString();
}
} else if (value.isArray()) {
qWarning() << "JsonArray not expected.";
}
}
return QString();
}
void StickyNotesPasteProtocol::pasteFinished()
{
if (m_pasteReply->error()) {
qWarning("%s protocol error: %s", qPrintable(name()),qPrintable(m_pasteReply->errorString()));
} else {
// Parse id from '<result><id>143204</id><hash></hash></result>'
// No useful error reports have been observed.
const QString id = parseElement(m_pasteReply, QLatin1String("id"));
if (id.isEmpty())
qWarning("%s protocol error: Could not send entry.", qPrintable(name()));
else
emit pasteDone(m_hostUrl + id);
}
m_pasteReply->deleteLater();
m_pasteReply = nullptr;
}
void StickyNotesPasteProtocol::fetch(const QString &id)
{
QTC_ASSERT(!m_fetchReply, return);
// Did we get a complete URL or just an id?
m_fetchId = id;
const int lastSlashPos = m_fetchId.lastIndexOf(QLatin1Char('/'));
if (lastSlashPos != -1)
m_fetchId.remove(0, lastSlashPos + 1);
QString url = m_hostUrl + QLatin1String("api/json/show/") + m_fetchId;
if (debug)
qDebug() << "fetch: sending " << url;
m_fetchReply = httpGet(url);
connect(m_fetchReply, &QNetworkReply::finished,
this, &StickyNotesPasteProtocol::fetchFinished);
}
// Parse: '<result><id>143228</id><author>foo</author><timestamp>1320661026</timestamp><language>text</language>
// <data>bar</data></result>'
void StickyNotesPasteProtocol::fetchFinished()
{
const QString title = name() + QLatin1String(": ") + m_fetchId;
QString content;
const bool error = m_fetchReply->error();
if (error) {
content = m_fetchReply->errorString();
if (debug)
qDebug() << "fetchFinished: error" << m_fetchId << content;
} else {
content = parseElement(m_fetchReply, QLatin1String("data"));
content.remove(QLatin1Char('\r'));
}
m_fetchReply->deleteLater();
m_fetchReply = nullptr;
emit fetchDone(title, content, error);
}
void StickyNotesPasteProtocol::list()
{
QTC_ASSERT(!m_listReply, return);
// Trailing slash is important to prevent redirection.
QString url = m_hostUrl + QLatin1String("api/json/list");
m_listReply = httpGet(url);
connect(m_listReply, &QNetworkReply::finished,
this, &StickyNotesPasteProtocol::listFinished);
if (debug)
qDebug() << "list: sending " << url << m_listReply;
}
// Parse 'result><pastes><paste>id1</paste><paste>id2</paste>...'
static inline QStringList parseList(QIODevice *device)
{
QStringList result;
const QJsonDocument doc = QJsonDocument::fromJson(device->readAll());
if (doc.isEmpty() || !doc.isObject())
return result;
QJsonObject obj= doc.object();
const QString resultKey = QLatin1String("result");
const QString pastesKey = QLatin1String("pastes");
if (obj.contains(resultKey)) {
QJsonValue value = obj.value(resultKey);
if (value.isObject()) {
obj = value.toObject();
if (obj.contains(pastesKey)) {
value = obj.value(pastesKey);
if (value.isArray()) {
const QJsonArray array = value.toArray();
for (const QJsonValue &val : array)
result.append(val.toString());
}
}
}
}
return result;
}
void StickyNotesPasteProtocol::listFinished()
{
const bool error = m_listReply->error();
if (error) {
if (debug)
qDebug() << "listFinished: error" << m_listReply->errorString();
} else {
emit listDone(name(), parseList(m_listReply));
}
m_listReply->deleteLater();
m_listReply = nullptr;
}
} // CodePaster
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